Memory Interface - NEC uPD98502 User Manual

1.7.5 Memory interface

Pin Name Pin No.
SDCLK0 L1
SDCLK1 G3
SDCKE0 L3
SDCKE1 F2
SDCS_B F3
SDRAS_B E2
SDCAS_B G5
SDWE_B D1
SRMCS_B A7
SRMOE_B C8
SMA0 E3
SMA1 D2
SMA2 C1
SMA3 J2
SMA4 H1
SMA5 J3
SMA6 J4
SMA7 H2
SMA8 G1
SMA9 H3
SMA10 E4
SMA11 D3
SMA12 B1
SMA13 A1
SMA14 B2
SMA15 G2
SMA16 C3
SMA17 F1
SMA18 J1
SMA19 K3
SMA20 K2
SMD0 A2
SMD1 B3
SMD2 C4
SMD3 D5
SMD4 A3
SMD5 B4
SMD6 D6
SMD7 A4
SMD8 T1
SMD9 R3
SMD10 R4
CHAPTER 1 INTRODUCTION
I/O Active Level
O SDRAM clock
O SDRAM clock
O H SDRAM clock enable
O H SDRAM clock enable
O L Chip select
O L Row address strobe
O L Column address strobe
O L Write enable
O L PROM/FLASH chip select
O L PROM/FLASH output enable
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
O Memory address
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
I/O Memory data
Preliminary User's Manual S15543EJ1V0UM
Function
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